Home / 10,311.84-15,467.28-2,520.24

Finding the Fourth Proportional to 10,311.84, 15,467.28 and 2,520.24

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Solution

The fourth proportional to 10,311.84, 15,467.28 and 2,520.24 is: 3,780.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,311.84 : 15,467.28 = 2,520.24 : x
  2. Step 2: Convert to fraction form
    10,311.84/15,467.28 = 2,520.24/x
  3. Step 3: Cross multiply
    10,311.84x = 15,467.28 × 2,520.24
  4. Step 4: Simplify right side
    10,311.84x = 38,981,257.75
  5. Step 5: Solve for x
    x = 38,981,257.75/10,311.84
  6. Step 6: Final answer
    x = 3,780.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.